nguyenvanviet310101999 2/20/2024 8:02:16 PM

Question 166: The disaster has caused              damage to the area.

A. consider                        B. considering                   C. considered                    D. considerable

Question 167: Children can be difficult to teach because of their short attention          .

A. limit                              B. duration                        C. span                              D. time

Question 168: The optic fiber was a major            in the field of telecommunications.

A. break down                  B. breakthrough                C. revolution                     D. technique

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